public MessageFetcher(IPageReader remote, ICheckpointReader remotePos, IMemoryStreamManager streamManager, string streamName)
{
_remote = remote;
_remotePos = remotePos;
_streamManager = streamManager;
StreamName = streamName;
}
public MessageCopier(
IPageReader sourceReader,
ICheckpointReader sourcePos,
IMemoryStreamManager streamManager,
IPageWriter targetWriter,
ICheckpointWriter targetPos)
{
_sourceReader = sourceReader;
SourcePos = sourcePos;
_streamManager = streamManager;
_targetWriter = targetWriter;
TargetPos = targetPos;
}
public async Task <IProjection> Create(Type type)
{
var pi = GetProjectionInfo(type);
var proj = new Projection();
proj.Name = pi.Name;
proj.SubscriptionStreamName = pi.SubscriptionStreamName;
ICheckpointReader cr = Provider.GetRequiredService <ICheckpointReader>();
proj.Checkpoint = await cr.Read($"Checkpoints-{proj.Name}");
ICheckpointWriter cw = Provider.GetRequiredService <ICheckpointWriter>();
proj.CheckpointWriter = cw;
proj.Subscription = CreateSubscription(proj);
proj.Handlers = GetHandlers(type);
return(proj);
}
public MessageReader(ICheckpointReader position, IPageReader messages) {
_position = position;
_messages = messages;
_buffer = new byte[Limit];
}
public MessageReader(ICheckpointReader position, IPageReader messages)
{
Position = position;
Messages = messages;
_buffer = new byte[Limit];
}
